One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

One way of getting a good idea when you can plant phlox is to refer to the USDA zone info for Avon.

Planting Calendar for Phlox

Frost tolerance for phlox:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since phlox are moderately cold tolerant you can plant them a little earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant phlox in Avon is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant phlox and expect a good harvest is probably August. Any later than that and your phlox may not have a chance to really do well. Starting your phlox indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is May 15 in Avon. You can expect an average low temperature of -25°F in the coldest months of winter.

Keep in mind that USDA zone info for Avon is just an average and the actual date of last frost will vary from year to year. Since half of the time in Avon you get surprised by a frost after May 15 be ready to protect your phlox in the event of a surprise late frost.

USDA Zone Info for Avon

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Avon

You may be interested in your other planting guides for Avon.